Google Professional Cloud Network Engineer Question 618
Select 2Google Cloud PlatformYou are designing a highly available network architecture for a multi-NIC virtual machine (VM) in Google Cloud. The VM requires traffic routing through dedicated internal load balancers (ILBs) on each NIC for redundancy and scalability. Which of the following steps are necessary to configure an internal load balancer as the next hop for routing traffic from the multi-NIC VM?
- A
Create a backend service and attach the multi-NIC VM as a backend.
- B
Configure a static route with the internal load balancer's IP address as the next hop.
- C
Ensure the VM's NICs and the internal load balancer are in the same VPC network and region.
- D
Assign a public IP address to the internal load balancer.
- E
Enable bidirectional forwarding for traffic passing through the internal load balancer.
Show answer and explanation
Correct answers: B, C
Explanation
To configure an internal load balancer as a next hop for routing traffic from a multi-NIC VM, you must set up a static route pointing to the internal load balancer's IP address. Additionally, both the internal load balancer and the VM's NICs must reside in the same VPC network and region to enable proper routing. Assigning a public IP or enabling bidirectional forwarding is unnecessary for internal load balancers.
- A. Incorrect.
Incorrect: The multi-NIC VM is not attached directly to the backend service of the internal load balancer. Instead, the internal load balancer's IP address is used as the next hop for traffic routing.
- B. Correct.
Correct: A static route must be configured with the internal load balancer's IP address as the next hop to route traffic through it.
- C. Correct.
Correct: The internal load balancer and the VM's NICs must be in the same VPC network and region to ensure proper communication and routing.
- D. Incorrect.
Incorrect: Internal load balancers are designed for private communication and do not require public IP addresses.
- E. Incorrect.
Incorrect: Bidirectional forwarding is not a feature required for internal load balancer traffic routing.